Problema Solution
the weight W of an aluminum flatboat varies directly with the length L of the boat. If a 9-foot boat weighs 144 pounds, then what is the weight of a 10-foot boat?
Answer provided by our tutors
W varies directly with L if there is a constant k such that:
W = k*L
let 'x' represent the weight of 10 foot boat
9 : 144 = 10 : x
by solving we find:
x = 160 lbs
click here to see the step by step solution of the equation:
the weight of a 100 foot boat is 160 pounds.